Highlighter Issues

[Atrus Greyor]

With the below code, whenever I click find, it is supposed to highlight the text that is in the search box. I have looked through some other examples online and it looks like it should work, but it does not. Can anyone explain why?

    
package gui;
 
import error.Error;
 
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
 
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultHighlighter;
import javax.swing.text.Highlighter;
 
public class FindFunction implements ActionListener 
{
private boolean debug = true;

private String text;

private JFrame f = new JFrame("Find and Replace");

private JTextField findBox = new JTextField(20);
private JTextField replaceBox = new JTextField(20);

private JCheckBox ignoreCase = new JCheckBox("Ignore Case");
private JCheckBox wholeWord = new JCheckBox("Whole Words Only");

private JButton find = new JButton("Find");
private JButton findAll = new JButton("Find All");
private JButton replace = new JButton("Replace");
private JButton replaceAll = new JButton("Replace All");
private JButton close = new JButton("Close");

private Highlighter highlight;
Highlighter.HighlightPainter painter = new DefaultHighlighter.DefaultHighlightPainter(Color.green);

public FindFunction(JTextPane area)
{
highlight = new DefaultHighlighter();
area.setHighlighter(highlight);
text = area.getText();

makeGUI();
}

private void makeGUI()
{
JLabel searchFor = new JLabel("Search For");
JLabel replaceWith = new JLabel("Replace With");

JPanel left = new JPanel();
JPanel right = new JPanel();

GridLayout leftLayout = new GridLayout(9, 1);
BoxLayout rightLayout = new BoxLayout(right, BoxLayout.PAGE_AXIS);

find.setMaximumSize(new Dimension(102, 25));
find.addActionListener(this);
findAll.setMaximumSize(new Dimension(102, 25));
findAll.addActionListener(this);
replace.setMaximumSize(new Dimension(102, 25));
replace.addActionListener(this);
replaceAll.setMaximumSize(new Dimension(102, 25));
replaceAll.addActionListener(this);
close.setMaximumSize(new Dimension(102, 25));
close.addActionListener(this);


left.setLayout(leftLayout);
right.setLayout(rightLayout);
f.setLayout(new FlowLayout());

left.setBorder(BorderFactory.createEmptyBorder(3, 7, 3, 3));

left.add(searchFor);
left.add(findBox);
left.add(new JLabel(" "));
left.add(replaceWith);
left.add(replaceBox);
left.add(new JLabel(" "));
left.add(new JLabel(" "));
left.add(ignoreCase);
left.add(wholeWord);


right.add(find);
right.add(findAll);
right.add(new JLabel(" "));
right.add(new JLabel(" "));
right.add(replace);
right.add(replaceAll);
right.add(new JLabel(" "));
right.add(new JLabel(" "));
right.add(new JLabel(" "));
right.add(close);

f.add(left);
f.add(right);

f.pack();
f.setVisible(true);
}

public static void main(String[] args)
{
JFrame f = new JFrame();
f.setSize(400, 400);
JTextPane a = new JTextPane();
a.setText("The girl is blue");

f.add(a);
f.setVisible(true);
new FindFunction(a);
}
 
public void actionPerformed(ActionEvent e) 
{
if(e.getSource() == find)
{
String searchTerm = findBox.getText();
try 
{
System.out.println("Index: " + text.indexOf(searchTerm) + " Length: " + searchTerm.length());
highlight.addHighlight(text.indexOf(searchTerm), searchTerm.length(), painter);
}
catch (BadLocationException e1) 
{
Error.report(e1, debug);
}
}
else if(e.getSource() == findAll)
{

}
else if(e.getSource() == replace)
{

}
else if(e.getSource() == replaceAll)
{

}
else if(e.getSource() == close)
{
f.dispose();
}
}
}
 

[Atrus Greyor]

Ah, never mind.

The two ints in the highlight method are for the start of the highlight and to the end of the highlight, not the start and how long the highlight should continue on.

Well I fixed my problem, but thanks anyways!